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UFC Fight Night: Ribas vs. Namajunas
Youssef Zalal
Youssef Zalal
13-5-1 · USA
VS
March 23, 2024 · Las Vegas, Nevada, USA
Featherweight · 3 rounds
146.0lb
Weigh-in
145.5lb
Youssef Zalal def. Billy Quarantillo by SUB (Rear Naked Choke), R2 1:50
Performance
Round by round
SSTDKDCtrl
R1
Zalal31/491/101:33
Quarantillo8/400/000:21
R2 · 1:50
Zalal2/71/101:22
Quarantillo2/100/000:00
Total
Zalal33/562/202:55
Quarantillo10/500/000:21

Pre-fight

The model's read going in

The walk-forward model's call at the time of the bout — persisted out-of-sample, with no hindsight about the result.

Prediction
ZalalWin probabilityQuarantillo
51.1%48.9%
KO / TKO
38%
Submission
31%
Decision
31%
Expected fight time: 8.7 min
Retrospective pick: the walk-forward model's call at the time of the fight — persisted out-of-sample, with no hindsight about the result.
What drives the pick

Each bar is a feature's push on the model from the center axis. Red pushes toward Zalal, blue toward Quarantillo. Tap a bar for why.

Predicted outcomes
Zalal51%
Wins by
Model
Equity
Mkt
KO / TKO17%33%14%
Submission17%34%6%
Decision17%33%32%
Predicted output
Sig. strikes40 (1755)act 33
Takedowns0.9 (0.03.1)act 2
Quarantillo49%
Wins by
Model
Equity
Mkt
KO / TKO22%44%13%
Submission13%27%6%
Decision14%29%29%
Predicted output
Sig. strikes36 (1548)act 10
Takedowns0.6 (0.02.6)act 0
Combined totals~76 sig strikes~1.5 takedownsmkt —
How it ends
mkt —
R132%
R226%
R311%
Distance31%
Fighter props
Most sig. strikestie 1.2%
Zalal
53.1%-116
Quarantillo
+11645.7%
Most takedownstie 33.0%
Zalal
39.3%-141
Quarantillo
+14127.8%
Significant strikes — over/under
Zalal
Expected: 40.3
40.5
Over 40.5
39.5%
+153
Under 40.5
60.5%
-153
051101
Quarantillo
Expected: 35.8
36
Over 36
38.8%
+154
Exactly 36
1.3%
push
Under 36
59.9%
-154
04590
Takedowns — over/under
Zalal
Expected: 0.9
1
Over 1
32.8%
+144
Exactly 1
20.0%
push
Under 1
47.2%
-144
035
Quarantillo
Expected: 0.6
0.5
Over 0.5
42.4%
+136
Under 0.5
57.6%
-136
035

Odds are model-implied (no real prop market is priced for these). The “most” prices are draw-no-bet — a tie (for takedowns, usually 0–0) is a push, so each side is priced off its chance of winning given a result, while the % shown is the raw chance of landing strictly more. Drag a line in half-point steps: a half line (e.g. 2.5) is a clean over/under, while a whole number adds a third outcome — landing exactly on it, a push — so over, exact and under sum to 100%. On a whole number the over/under odds are draw-no-bet (priced off the decisive mass, since the push refunds), so the two sides stay mirror images rather than implying an arbitrage.

Expected fight time 8.7 min. Predicted-output ranges are percentiles of the model’s simulated fights: sig strikes the middle 50% (25th–75th); takedowns the wider 10th–90th, since they’re 0 in most fights so a narrow band would collapse to 0. Win-by-method = win probability × that fighter’s own method split: the model forecasts how the fight ends, and that forecast is divided between the corners by each fighter’s finishing record — UFC wins in full, earlier-career wins at half weight, as of fight night — reconciled so the fighters’ totals still equal their win probabilities and the methods still total the fight-level forecast above. “Equity” is each of those over that fighter’s win % — how they win given that they win — so a column adds to 100%, and it differs by corner. A fighter with no classifiable wins at any level leans on the fight-level split. “How it ends” is the model’s round-of-finish split. “Mkt” is the de-vigged market prop (consensus across books), shown for context, not as a betting signal; rounds & totals slots fill as that data lands. Percentages are apportioned by largest remainder, so each set adds to its total exactly and an individual figure can sit a point off its own rounding.

Model vs market
Final
ModelMarketGapLine
To win
Zalal51.1%53.7%−2.6-128
Quarantillo48.9%46.3%+2.6+107
By method
Zalal by KO/TKO19.6%13.6%+6.0+509
Zalal by submission15.8%6.3%+9.5+1212
Zalal by decision15.8%31.9%−16.1+161
Quarantillo by KO/TKO18.7%12.8%+5.9+549
Quarantillo by submission15.1%6.4%+8.7+1198
Quarantillo by decision15.1%29.0%−13.9+186
Total rounds (over)
Over 1.5 rds67.4%76.6%−9.2-453
Over 2.5 rds41.8%67.6%−25.8-261
Goes the distance
Fight goes to decision30.8%64.7%−33.9-224

Market % is the de-vigged (no-vig) consensus across the books that price both fighters; the line is the average across books with the min–max range in parentheses. Gap is the model minus the market in points (+ = the model rates that outcome above the market). Thin or one-sided markets are flagged or left blank rather than shown as a fabricated %. Shown for context, not as a bet — the closing line is the sharpest public price and the model trails it on average. For 5-round bouts the model splits its round-3+ finish mass into rounds 3–5 by the historical within-bucket rate, so the over-3.5 / 4.5 lines carry a model estimate.

Trait web
73.1Striking66.5
Zalal +6.6
56.1Grappling52.6
Zalal +3.5
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
ZalalQuarantillo
Tale of the tape
Ratings (Elo)
1510
Pound-for-pound
1574
1511
Divisional
1560
1502
Striking offense
1533
1514
Striking defense
1473
1509
Grappling offense
1510
1497
Grappling defense
1490
Physical
27 yrs
Age
35 yrs
5'10"
Height
5'10"
72"
Reach
70"
Switch
Stance
Orthodox
Striking (UFC career)
2.75
Strikes landed / min
7.26
48%
Strike accuracy
55%
1.75
Strikes absorbed / min
5.64
64%
Strike defense
44%
Grappling (UFC career)
2.14
Takedowns / 15 min
1.44
31%
Takedown accuracy
25%
61%
Takedown defense
64%
1.1
Sub attempts / 15 min
1.3
Form & résumé
50%
UFC win rate
67%
0
Win/loss streak
+1
20%
Last-5 win rate
60%
0%
Finish rate
67%
Recent opp. quality
588
Days since last fight
231
Recent form (last 5 UFC)
Youssef Zalal
  • DDa'Mon BlackshearM-DEC R3
    Close -1351y 7mo before
  • LSean WoodsonS-DEC R3
    Close +1332y 10mo before
  • LSeungWoo ChoiU-DEC R3
    Close -2403y 1mo before
  • LIlia TopuriaU-DEC R3
    Close -1623y 5mo before
  • WPeter BarrettU-DEC R3
    Close -4803y 7mo before
Billy Quarantillo
  • WDamon JacksonU-DEC R3
    Close -1658mo before
  • LEdson BarbozaKO/TKO R1
    Close -17111mo before
  • WAlexander HernandezKO/TKO R2
    Close -1701y 3mo before
  • LShane BurgosU-DEC R3
    Close +1562y 5mo before
  • WGabriel BenitezKO/TKO R3
    Close +1292y 8mo before
Zalal — win / loss by method
Record: 13-5-1

Bar length is fight count (largest bar = full width); shading splits finishes by round and decisions by unanimous vs split — tap a bar for the round-by-round count.

KO/TKO
4 wins, 0 losses
W
31% of wins
L
0% of losses
Submission
6 wins, 0 losses
W
46% of wins
L
0% of losses
Decision
3 wins, 5 losses
W
23% of wins
L
100% of losses
UFC
3win3loss1draw0NC
WinsLosses
0 (0%)KO/TKO(0%) 0
0 (0%)Submission(0%) 0
3 (100%)Decision(100%) 3
Non-UFC
10win2loss0draw0NC
WinsLosses
4 (40%)KO/TKO(0%) 0
6 (60%)Submission(0%) 0
0 (0%)Decision(100%) 2
Quarantillo — win / loss by method
Record: 18-5-0

Bar length is fight count (largest bar = full width); shading splits finishes by round and decisions by unanimous vs split — tap a bar for the round-by-round count.

KO/TKO
8 wins, 2 losses
W
44% of wins
L
40% of losses
Submission
5 wins, 0 losses
W
28% of wins
L
0% of losses
Decision
5 wins, 3 losses
W
28% of wins
L
60% of losses
UFC
6win3loss0draw0NC
WinsLosses
3 (50%)KO/TKO(33%) 1
1 (17%)Submission(0%) 0
2 (33%)Decision(67%) 2
Non-UFC
12win2loss0draw0NC
WinsLosses
5 (42%)KO/TKO(50%) 1
4 (33%)Submission(0%) 0
3 (25%)Decision(50%) 1

Profiles

Experience
Zalal
Quarantillo
7
UFC fights
9
105.0 min · 15.0 avg
Octagon time
104.2 min · 11.6 avg
8y 11m
Career length
13y 5m
UFC schedule strength

Opponents' records on fight night — toggle their full cross-promotional record vs UFC bouts only.

Zalal
Quarantillo
59W–14L · 80.8%
Overall
134W–39L · 77.5%
36W–10L · 78.3%
Wins
87W–24L · 78.4%
23W–4L · 85.2%
Losses
47W–15L · 75.8%
Non-UFC schedule strength
Zalal
Quarantillo
55W–24L · 69.6%
Overall
110W–56L · 66.3%
40W–18L · 69.0%
Wins
95W–48L · 66.4%
15W–6L · 71.4%
Losses
15W–8L · 65.2%
Distance striking
Zalal
Quarantillo
5.75
Landed / min
12.57
45.7%
Accuracy
46.4%
67.7%
Defense
47.1%
0.14
Knockdowns / 15 min
0.29
38.7%
Time at distance
36.0%
Grappling & control
Zalal
Quarantillo
2.14
Takedowns / 15 min
1.44
31.3%
Takedown accuracy
25.0%
60.7%
Takedown defense
64.3%
1.14
Sub attempts / 15 min
1.30
59.2%
Control share
51.0%
Strike target map
Zalal
  • Head63%(181)div 63%
  • Body20%(58)div 20%
  • Legs17%(50)div 16%
Quarantillo
  • Head70%(526)div 63%
  • Body24%(178)div 20%
  • Legs7%(52)div 16%

Where each fighter lands significant strikes (career). “div” = the weight-class average.

Youssef Zalal
CloseSSTDKDCtrl

Per-fight: SS & TD shown landed/attempted; Close = consensus closing line.

Billy Quarantillo
CloseSSTDKDCtrl

Per-fight: SS & TD shown landed/attempted; Close = consensus closing line.